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<a name="1" href="#1">1</a>   <em>/**<em>*</em></em>
<a name="2" href="#2">2</a>   <em> * $Id: NamesRecord.html 11 2009-01-29 14:58:33Z azeckoski $</em>
<a name="3" href="#3">3</a>   <em> * $URL: http://genericdao.googlecode.com/svn/maven/site/xref/org/sakaiproject/genericdao/api/mappers/NamesRecord.html $</em>
<a name="4" href="#4">4</a>   <em> * NamesRecord.java - genericdao - Apr 25, 2008 10:31:17 PM - azeckoski</em>
<a name="5" href="#5">5</a>   <em> **************************************************************************</em>
<a name="6" href="#6">6</a>   <em> * Copyright (c) 2008 Aaron Zeckoski</em>
<a name="7" href="#7">7</a>   <em> * Licensed under the Apache License, Version 2</em>
<a name="8" href="#8">8</a>   <em> * </em>
<a name="9" href="#9">9</a>   <em> * A copy of the Apache License, Version 2 has been included in this </em>
<a name="10" href="#10">10</a>  <em> * distribution and is available at: <a href="http://www.apache.org/licenses/LICENSE-2.0.txt" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0.txt</a></em>
<a name="11" href="#11">11</a>  <em> *</em>
<a name="12" href="#12">12</a>  <em> * Aaron Zeckoski (azeckoski@gmail.com) (aaronz@vt.edu) (aaron@caret.cam.ac.uk)</em>
<a name="13" href="#13">13</a>  <em> */</em>
<a name="14" href="#14">14</a>  
<a name="15" href="#15">15</a>  <strong>package</strong> org.sakaiproject.genericdao.api.mappers;
<a name="16" href="#16">16</a>  
<a name="17" href="#17">17</a>  <strong>import</strong> java.util.ArrayList;
<a name="18" href="#18">18</a>  <strong>import</strong> java.util.Collections;
<a name="19" href="#19">19</a>  <strong>import</strong> java.util.List;
<a name="20" href="#20">20</a>  <strong>import</strong> java.util.Map;
<a name="21" href="#21">21</a>  <strong>import</strong> java.util.concurrent.ConcurrentHashMap;
<a name="22" href="#22">22</a>  
<a name="23" href="#23">23</a>  <em>/**<em>*</em></em>
<a name="24" href="#24">24</a>  <em> * Stores the names mapping from persistent entity properties to database column names,</em>
<a name="25" href="#25">25</a>  <em> * this is generated by reflection if not defined for the persistent entity</em>
<a name="26" href="#26">26</a>  <em> * </em>
<a name="27" href="#27">27</a>  <em> * @author Aaron Zeckoski (azeckoski@gmail.com)</em>
<a name="28" href="#28">28</a>  <em> */</em>
<a name="29" href="#29">29</a>  <strong>public</strong> <strong>class</strong> <a href="../../../../../org/sakaiproject/genericdao/api/mappers/NamesRecord.html">NamesRecord</a> {
<a name="30" href="#30">30</a>  
<a name="31" href="#31">31</a>      <strong>private</strong> Map&lt;String, String> propertyToColumn = <strong>new</strong> ConcurrentHashMap&lt;String, String>();
<a name="32" href="#32">32</a>      <strong>private</strong> Map&lt;String, String> columnToProperty = <strong>new</strong> ConcurrentHashMap&lt;String, String>();
<a name="33" href="#33">33</a>      <strong>private</strong> Map&lt;String, String> foreignKeyPropertyToColumn = <strong>new</strong> ConcurrentHashMap&lt;String, String>();
<a name="34" href="#34">34</a>      <em>/**<em>*</em></em>
<a name="35" href="#35">35</a>  <em>     * Allows for special handling of the types and will convert all data going into the DB into the</em>
<a name="36" href="#36">36</a>  <em>     * type indicated in this map for the column name stored here, by default this will be totally null, </em>
<a name="37" href="#37">37</a>  <em>     * will also convert the data coming out from the</em>
<a name="38" href="#38">38</a>  <em>     * JDBC type to the persistent class type</em>
<a name="39" href="#39">39</a>  <em>     */</em>
<a name="40" href="#40">40</a>      <strong>private</strong> Map&lt;String, Class&lt;?>> columnToType = <strong>new</strong> ConcurrentHashMap&lt;String, Class&lt;?>>();
<a name="41" href="#41">41</a>  
<a name="42" href="#42">42</a>      <em>/**<em>*</em></em>
<a name="43" href="#43">43</a>  <em>     * Store a mapping from property to column</em>
<a name="44" href="#44">44</a>  <em>     * @param property the property from a persistent object</em>
<a name="45" href="#45">45</a>  <em>     * @param column the db table column which maps to the property</em>
<a name="46" href="#46">46</a>  <em>     */</em>
<a name="47" href="#47">47</a>      <strong>public</strong> <strong>void</strong> setNameMapping(String property, String column) {
<a name="48" href="#48">48</a>          setNameMapping(property, column, <strong>null</strong>);
<a name="49" href="#49">49</a>      }
<a name="50" href="#50">50</a>  
<a name="51" href="#51">51</a>      <em>/**<em>*</em></em>
<a name="52" href="#52">52</a>  <em>     * Store a mapping from property to column with a conversion type for the column</em>
<a name="53" href="#53">53</a>  <em>     * @param property the property from a persistent object</em>
<a name="54" href="#54">54</a>  <em>     * @param column the db table column which maps to the property</em>
<a name="55" href="#55">55</a>  <em>     * @param type the conversion type to convert this to in input into the DB</em>
<a name="56" href="#56">56</a>  <em>     */</em>
<a name="57" href="#57">57</a>      <strong>public</strong> <strong>void</strong> setNameMapping(String property, String column, Class&lt;?> type) {
<a name="58" href="#58">58</a>          <strong>if</strong> (property == <strong>null</strong> || column == <strong>null</strong>) {
<a name="59" href="#59">59</a>              <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"property and column must not be null"</span>);
<a name="60" href="#60">60</a>          }
<a name="61" href="#61">61</a>          propertyToColumn.put(property, column);
<a name="62" href="#62">62</a>          columnToProperty.put(column, property);
<a name="63" href="#63">63</a>          <strong>if</strong> (columnToProperty.size() != propertyToColumn.size()) {
<a name="64" href="#64">64</a>              propertyToColumn.remove(property);
<a name="65" href="#65">65</a>              columnToProperty.remove(column);
<a name="66" href="#66">66</a>              <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"Invalid state of mapping, there is an uneven set of properties to columns which "</span> +
<a name="67" href="#67">67</a>                      <span class="string">"indicates that this property ("</span>+property+<span class="string">") and column ("</span>+column+<span class="string">") combination has overwritten an existing value"</span>);
<a name="68" href="#68">68</a>          }
<a name="69" href="#69">69</a>          <strong>if</strong> (type != <strong>null</strong>) {
<a name="70" href="#70">70</a>              columnToType.put(property, type);
<a name="71" href="#71">71</a>          }
<a name="72" href="#72">72</a>      }
<a name="73" href="#73">73</a>  
<a name="74" href="#74">74</a>  
<a name="75" href="#75">75</a>      <strong>private</strong> String idProperty = DataMapper.DEFAULT_ID_PROPERTY;
<a name="76" href="#76">76</a>      <em>/**<em>*</em></em>
<a name="77" href="#77">77</a>  <em>     * @return the property name that represents the unique identifiers,</em>
<a name="78" href="#78">78</a>  <em>     * this will be the default of "id" if not set</em>
<a name="79" href="#79">79</a>  <em>     */</em>
<a name="80" href="#80">80</a>      <strong>public</strong> String getIdProperty() {
<a name="81" href="#81">81</a>          <strong>return</strong> idProperty;
<a name="82" href="#82">82</a>      }
<a name="83" href="#83">83</a>      <em>/**<em>*</em></em>
<a name="84" href="#84">84</a>  <em>     * Special handling for setting the unique identifier property for a class,</em>
<a name="85" href="#85">85</a>  <em>     * this is optional but recommended</em>
<a name="86" href="#86">86</a>  <em>     * @param property the property from a persistent object of the unique identifier</em>
<a name="87" href="#87">87</a>  <em>     * @param column the db table column which maps to the identifier property</em>
<a name="88" href="#88">88</a>  <em>     */</em>
<a name="89" href="#89">89</a>      <strong>public</strong> <strong>void</strong> setIdentifierProperty(String property) {
<a name="90" href="#90">90</a>          <strong>if</strong> (! propertyToColumn.containsKey(property)) {
<a name="91" href="#91">91</a>              <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"this property ("</span>+property+<span class="string">") is not one of the mappings, "</span> +
<a name="92" href="#92">92</a>                      <span class="string">"you must specify an id property which is an existing mapping, i.e. this cannot be "</span> +
<a name="93" href="#93">93</a>              <span class="string">"set until after you have added the id property mapping"</span>);
<a name="94" href="#94">94</a>          }
<a name="95" href="#95">95</a>          idProperty = property;
<a name="96" href="#96">96</a>      }
<a name="97" href="#97">97</a>  
<a name="98" href="#98">98</a>      <em>/**<em>*</em></em>
<a name="99" href="#99">99</a>  <em>     * Special handling for setting the foreign key properties for a class,</em>
<a name="100" href="#100">100</a> <em>     * this is optional but recommended</em>
<a name="101" href="#101">101</a> <em>     * @param property the property from a persistent object which matches a foreign key,</em>
<a name="102" href="#102">102</a> <em>     * normally this would be something like "thing.id" where thing is the property of the foreign key</em>
<a name="103" href="#103">103</a> <em>     * and id is the unique identifier of the object type of the thing property</em>
<a name="104" href="#104">104</a> <em>     * @param column the db table column which maps to the foreign key</em>
<a name="105" href="#105">105</a> <em>     */</em>
<a name="106" href="#106">106</a>     <strong>public</strong> <strong>void</strong> setForeignKeyMapping(String property, String column) {
<a name="107" href="#107">107</a>         <strong>if</strong> (property == <strong>null</strong> || column == <strong>null</strong>) {
<a name="108" href="#108">108</a>             <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"property and column must not be null"</span>);
<a name="109" href="#109">109</a>         }
<a name="110" href="#110">110</a>         <strong>if</strong> (! columnToProperty.containsKey(column)) {
<a name="111" href="#111">111</a>             <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"this column ("</span>+column+<span class="string">") is not one of the mappings, "</span> +
<a name="112" href="#112">112</a>                     <span class="string">"you must specify a foreign key column which is an existing mapping, i.e. this cannot be "</span> +
<a name="113" href="#113">113</a>             <span class="string">"set until after you have added the column mapping"</span>);
<a name="114" href="#114">114</a>         }
<a name="115" href="#115">115</a>         foreignKeyPropertyToColumn.put(property, column);
<a name="116" href="#116">116</a>         <strong>if</strong> (property.indexOf('.') != -1) {
<a name="117" href="#117">117</a>             String prefix = property.substring(0, property.indexOf('.'));
<a name="118" href="#118">118</a>             foreignKeyPropertyToColumn.put(prefix, column);         
<a name="119" href="#119">119</a>         }
<a name="120" href="#120">120</a>     }
<a name="121" href="#121">121</a> 
<a name="122" href="#122">122</a>     <em>/**<em>*</em></em>
<a name="123" href="#123">123</a> <em>     * @param property a property from a persistent object</em>
<a name="124" href="#124">124</a> <em>     * @return true if this is a foreign key</em>
<a name="125" href="#125">125</a> <em>     */</em>
<a name="126" href="#126">126</a>     <strong>public</strong> <strong>boolean</strong> isForeignKeyProperty(String property) {
<a name="127" href="#127">127</a>         <strong>boolean</strong> fk = foreignKeyPropertyToColumn.containsKey(property);
<a name="128" href="#128">128</a>         <strong>return</strong> fk;
<a name="129" href="#129">129</a>     }
<a name="130" href="#130">130</a> 
<a name="131" href="#131">131</a>     <em>/**<em>*</em></em>
<a name="132" href="#132">132</a> <em>     * @param column the column name in the DB table storing data for this entity (e.g SOME_STRING)</em>
<a name="133" href="#133">133</a> <em>     * @return the property from the persistent object which maps to this db column OR null if not found</em>
<a name="134" href="#134">134</a> <em>     */</em>
<a name="135" href="#135">135</a>     <strong>public</strong> String getPropertyForColumn(String column) {
<a name="136" href="#136">136</a>         String name = columnToProperty.get(column);
<a name="137" href="#137">137</a>         <strong>if</strong> (name == <strong>null</strong> &amp;&amp; column != <strong>null</strong>) {
<a name="138" href="#138">138</a>             name = columnToProperty.get(column.toLowerCase());
<a name="139" href="#139">139</a>         }
<a name="140" href="#140">140</a>         <strong>if</strong> (name == <strong>null</strong> &amp;&amp; column != <strong>null</strong>) {
<a name="141" href="#141">141</a>             name = columnToProperty.get(column.toUpperCase());
<a name="142" href="#142">142</a>         }
<a name="143" href="#143">143</a>         <em class="comment">// this is bad but we need to do a case-insensitive search for the name if we still failed to find it</em>
<a name="144" href="#144">144</a>         <strong>for</strong> (String key : columnToProperty.keySet()) {
<a name="145" href="#145">145</a>             <strong>if</strong> (key.equalsIgnoreCase(column)) {
<a name="146" href="#146">146</a>                 name = columnToProperty.get(key);
<a name="147" href="#147">147</a>                 <strong>break</strong>;
<a name="148" href="#148">148</a>             }
<a name="149" href="#149">149</a>         }
<a name="150" href="#150">150</a>         <strong>return</strong> name;
<a name="151" href="#151">151</a>     }
<a name="152" href="#152">152</a> 
<a name="153" href="#153">153</a>     <em>/**<em>*</em></em>
<a name="154" href="#154">154</a> <em>     * @param property a property in a persistent object</em>
<a name="155" href="#155">155</a> <em>     * @return the db column name which maps to this property OR null if not found</em>
<a name="156" href="#156">156</a> <em>     */</em>
<a name="157" href="#157">157</a>     <strong>public</strong> String getColumnForProperty(String property) {
<a name="158" href="#158">158</a>         String name = foreignKeyPropertyToColumn.get(property);
<a name="159" href="#159">159</a>         <strong>if</strong> (name == <strong>null</strong>) {
<a name="160" href="#160">160</a>             name = propertyToColumn.get(property);
<a name="161" href="#161">161</a>         }
<a name="162" href="#162">162</a>         <strong>return</strong> name;
<a name="163" href="#163">163</a>     }
<a name="164" href="#164">164</a> 
<a name="165" href="#165">165</a>     <em>/**<em>*</em></em>
<a name="166" href="#166">166</a> <em>     * @param property a property in a persistent object</em>
<a name="167" href="#167">167</a> <em>     * @return the type which maps to this property OR null if the property name is not found or there is no conversion needed</em>
<a name="168" href="#168">168</a> <em>     */</em>
<a name="169" href="#169">169</a>     <strong>public</strong> Class&lt;?> getTypeForProperty(String property) {
<a name="170" href="#170">170</a>         Class&lt;?> type = <strong>null</strong>;
<a name="171" href="#171">171</a>         <strong>if</strong> (property != <strong>null</strong>) {
<a name="172" href="#172">172</a>             String column = getColumnForProperty(property);
<a name="173" href="#173">173</a>             <strong>if</strong> (column != <strong>null</strong>) {
<a name="174" href="#174">174</a>                 type = columnToType.get(column);
<a name="175" href="#175">175</a>             }
<a name="176" href="#176">176</a>         }
<a name="177" href="#177">177</a>         <strong>return</strong> type;
<a name="178" href="#178">178</a>     }
<a name="179" href="#179">179</a> 
<a name="180" href="#180">180</a>     <em>/**<em>*</em></em>
<a name="181" href="#181">181</a> <em>     * @param column the column name in the DB table storing data for this entity (e.g SOME_STRING)</em>
<a name="182" href="#182">182</a> <em>     * @return the type which maps to this column OR null if the column name is not found or there is no conversion needed</em>
<a name="183" href="#183">183</a> <em>     */</em>
<a name="184" href="#184">184</a>     <strong>public</strong> Class&lt;?> getTypeForColumn(String column) {
<a name="185" href="#185">185</a>         Class&lt;?> type = <strong>null</strong>;
<a name="186" href="#186">186</a>         <strong>if</strong> (column != <strong>null</strong>) {
<a name="187" href="#187">187</a>             type = columnToType.get(column);
<a name="188" href="#188">188</a>         }
<a name="189" href="#189">189</a>         <strong>return</strong> type;
<a name="190" href="#190">190</a>     }
<a name="191" href="#191">191</a> 
<a name="192" href="#192">192</a>     <em>/**<em>*</em></em>
<a name="193" href="#193">193</a> <em>     * Allows for special handling of the types and will convert all data going into the DB into the</em>
<a name="194" href="#194">194</a> <em>     * type indicated in this map for the property, by default this returns null for all columns</em>
<a name="195" href="#195">195</a> <em>     * indicating no conversion is needed, will also convert the data coming out from the</em>
<a name="196" href="#196">196</a> <em>     * JDBC type to the persistent class type</em>
<a name="197" href="#197">197</a> <em>     * </em>
<a name="198" href="#198">198</a> <em>     * @param property a property in a persistent object, there must be column to property</em>
<a name="199" href="#199">199</a> <em>     * mapping for this or it will fail</em>
<a name="200" href="#200">200</a> <em>     * @param type the type which maps to this property,</em>
<a name="201" href="#201">201</a> <em>     * if null this will clear the current setting</em>
<a name="202" href="#202">202</a> <em>     * @throws IllegalArgumentException if there is no mapping for this property OR the property is null</em>
<a name="203" href="#203">203</a> <em>     */</em>
<a name="204" href="#204">204</a>     <strong>public</strong> <strong>void</strong> setTypeForProperty(String property, Class&lt;?> type) {
<a name="205" href="#205">205</a>         <strong>if</strong> (property == <strong>null</strong>) {
<a name="206" href="#206">206</a>             <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"property must be set"</span>);
<a name="207" href="#207">207</a>         }
<a name="208" href="#208">208</a>         String column = getColumnForProperty(property);
<a name="209" href="#209">209</a>         <strong>if</strong> (column == <strong>null</strong>) {
<a name="210" href="#210">210</a>             <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"No column found to match this property: "</span> + property);
<a name="211" href="#211">211</a>         }
<a name="212" href="#212">212</a>         setTypeForColumn(column, type);
<a name="213" href="#213">213</a>     }
<a name="214" href="#214">214</a> 
<a name="215" href="#215">215</a>     <em>/**<em>*</em></em>
<a name="216" href="#216">216</a> <em>     * Allows for special handling of the types and will convert all data going into the DB into the</em>
<a name="217" href="#217">217</a> <em>     * type indicated in this map for the column, by default this returns null for all columns</em>
<a name="218" href="#218">218</a> <em>     * indicating no conversion is needed, will also convert the data coming out from the</em>
<a name="219" href="#219">219</a> <em>     * JDBC type to the persistent class type</em>
<a name="220" href="#220">220</a> <em>     * </em>
<a name="221" href="#221">221</a> <em>     * @param column the column name in the DB table storing data for this entity (e.g SOME_STRING)</em>
<a name="222" href="#222">222</a> <em>     * @param type the type which maps to this property,</em>
<a name="223" href="#223">223</a> <em>     * if null this will clear the current setting</em>
<a name="224" href="#224">224</a> <em>     * @throws IllegalArgumentException if the column is null</em>
<a name="225" href="#225">225</a> <em>     */</em>
<a name="226" href="#226">226</a>     <strong>public</strong> <strong>void</strong> setTypeForColumn(String column, Class&lt;?> type) {
<a name="227" href="#227">227</a>         <strong>if</strong> (column == <strong>null</strong>) {
<a name="228" href="#228">228</a>             <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"column must be set"</span>);
<a name="229" href="#229">229</a>         }
<a name="230" href="#230">230</a>         <strong>if</strong> (type == <strong>null</strong>) {
<a name="231" href="#231">231</a>             columnToType.remove(column);
<a name="232" href="#232">232</a>         } <strong>else</strong> {
<a name="233" href="#233">233</a>             columnToType.put(column, type);
<a name="234" href="#234">234</a>         }
<a name="235" href="#235">235</a>     }
<a name="236" href="#236">236</a> 
<a name="237" href="#237">237</a>     <em>/**<em>*</em></em>
<a name="238" href="#238">238</a> <em>     * @return a list of all property names which are mapped,</em>
<a name="239" href="#239">239</a> <em>     * sorted in alpha order</em>
<a name="240" href="#240">240</a> <em>     */</em>
<a name="241" href="#241">241</a>     <strong>public</strong> List&lt;String> getPropertyNames() {
<a name="242" href="#242">242</a>         List&lt;String> names = <strong>new</strong> ArrayList&lt;String>();
<a name="243" href="#243">243</a>         <strong>if</strong> (propertyToColumn != <strong>null</strong>) {
<a name="244" href="#244">244</a>             names.addAll( propertyToColumn.keySet() );
<a name="245" href="#245">245</a>         }
<a name="246" href="#246">246</a>         Collections.sort(names);
<a name="247" href="#247">247</a>         <strong>return</strong> names;
<a name="248" href="#248">248</a>     }
<a name="249" href="#249">249</a> 
<a name="250" href="#250">250</a>     <em>/**<em>*</em></em>
<a name="251" href="#251">251</a> <em>     * @return a list of all column names which are mapped,</em>
<a name="252" href="#252">252</a> <em>     * sorted in alpha order</em>
<a name="253" href="#253">253</a> <em>     */</em>
<a name="254" href="#254">254</a>     <strong>public</strong> List&lt;String> getColumnNames() {
<a name="255" href="#255">255</a>         List&lt;String> names = <strong>new</strong> ArrayList&lt;String>();
<a name="256" href="#256">256</a>         <strong>if</strong> (columnToProperty != <strong>null</strong>) {
<a name="257" href="#257">257</a>             names.addAll( columnToProperty.keySet() );
<a name="258" href="#258">258</a>         }
<a name="259" href="#259">259</a>         Collections.sort(names);
<a name="260" href="#260">260</a>         <strong>return</strong> names;
<a name="261" href="#261">261</a>     }
<a name="262" href="#262">262</a> 
<a name="263" href="#263">263</a>     <em>/**<em>*</em></em>
<a name="264" href="#264">264</a> <em>     * @return a list of all properties which are foreign keys,</em>
<a name="265" href="#265">265</a> <em>     * sorted in alpha order</em>
<a name="266" href="#266">266</a> <em>     */</em>
<a name="267" href="#267">267</a>     <strong>public</strong> List&lt;String> getForeignKeyPropertyNames() {
<a name="268" href="#268">268</a>         List&lt;String> names = <strong>new</strong> ArrayList&lt;String>();
<a name="269" href="#269">269</a>         <strong>if</strong> (foreignKeyPropertyToColumn != <strong>null</strong>) {
<a name="270" href="#270">270</a>             <strong>for</strong> (String fkProp : <strong>for</strong>eignKeyPropertyToColumn.keySet()) {
<a name="271" href="#271">271</a>                 <strong>if</strong> (fkProp.indexOf('.') == -1) {
<a name="272" href="#272">272</a>                     names.add( fkProp );
<a name="273" href="#273">273</a>                 }
<a name="274" href="#274">274</a>             }
<a name="275" href="#275">275</a>         }
<a name="276" href="#276">276</a>         Collections.sort(names);
<a name="277" href="#277">277</a>         <strong>return</strong> names;
<a name="278" href="#278">278</a>     }
<a name="279" href="#279">279</a> 
<a name="280" href="#280">280</a>     <em>/**<em>*</em></em>
<a name="281" href="#281">281</a> <em>     * @return a list of all column names which are foreign keys,</em>
<a name="282" href="#282">282</a> <em>     * sorted in alpha order</em>
<a name="283" href="#283">283</a> <em>     */</em>
<a name="284" href="#284">284</a>     <strong>public</strong> List&lt;String> getForeignKeyColumnNames() {
<a name="285" href="#285">285</a>         List&lt;String> names = <strong>new</strong> ArrayList&lt;String>();
<a name="286" href="#286">286</a>         <strong>if</strong> (foreignKeyPropertyToColumn != <strong>null</strong>) {
<a name="287" href="#287">287</a>             <strong>for</strong> (String fkProp : <strong>for</strong>eignKeyPropertyToColumn.keySet()) {
<a name="288" href="#288">288</a>                 <strong>if</strong> (fkProp.indexOf('.') == -1) {
<a name="289" href="#289">289</a>                     names.add( foreignKeyPropertyToColumn.get(fkProp) );
<a name="290" href="#290">290</a>                 }
<a name="291" href="#291">291</a>             }
<a name="292" href="#292">292</a>         }
<a name="293" href="#293">293</a>         Collections.sort(names);
<a name="294" href="#294">294</a>         <strong>return</strong> names;
<a name="295" href="#295">295</a>     }
<a name="296" href="#296">296</a> 
<a name="297" href="#297">297</a> }
</pre>
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